Bug 1577702 - [DOCS] Support Statement on NFS for Registry for OCP 3.9
Summary: [DOCS] Support Statement on NFS for Registry for OCP 3.9
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Documentation
Version: 3.9.0
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
: ---
Assignee: Vikram Goyal
QA Contact: Dongbo Yan
Vikram Goyal
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-05-14 02:34 UTC by Mike Calizo
Modified: 2018-05-24 04:08 UTC (History)
6 users (show)

Fixed In Version:
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Last Closed: 2018-05-24 04:08:30 UTC
Target Upstream Version:


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Description Mike Calizo 2018-05-14 02:34:08 UTC
Document URL: https://access.redhat.com/documentation/en-us/openshift_container_platform/3.9/html/installation_and_configuration/installing-a-cluster#install-config-installing-stand-alone-registry

Section Number and Name: 2.6.3.11.1. Configuring Registry Storage

Describe the issue: Support statement for NFS on registry conflicts with what is stated on the OCP 3.9 docs "The use of NFS for metrics storage is experimental and not supported in OpenShift Container Platform."

According to Support team (via SBR-Shift) The statement (in short) was, NFS is supported but not recommended" while the document specifically mentioned it NFS is not supported full-stop 

Suggestions for improvement: I think we should update the document to mention something like this (thanks to SBR-Shift for this statement) - If you have a registry, you should be using object storage for it.  
If you don't have object storage, you should get object storage.  If you
can't get object storage, only then should you consider using NFS to
store registry contents. NFS and the registry always have to have some
limitations that make them a small-scale solution.
If you have object storage, then you already have a solution in place
to do global content sharing and local seeding of content, so that's
the recommended approach.



Additional information: 

SBR-shift Statement:
 NFS is supported for registry. And the statement should be "NFS is supported but object storage followed by block storage is preferred".
https://docs.openshift.com/container-platform/3.9/scaling_performance/optimizing_storage.html#application-storage-recommendations


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